package com.itheima.dao;

import com.itheima.pojo.Member;

import java.util.List;
import java.util.Map;

public interface MemberDao {
    Member findByTelephone(String telephone);

    void add(Member member);

    int findByTime(String reportDate);

    int findAllCount();

    List<Map<String,Object>> getMemberAge();

}
